Fastener for jewelry.



N. LIEBBRFREUND. PASTBNER FOR JEWELRY. APPLICATION FILED own, 1908.

Pattentedl May 11, 1909.

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Specification of Letters Patent.

Patented May 11, 1909.

Application filed October 17, 1908. Serial No. 458,202.

To all whom it may concern:

Be it known that l, N ATHAN LIEBER- FREUND, a citizen of the United States, residing at New York city, Manhattan, county and State of New York, have invented new and useful Improvements in Fasteners for Jewelry, of which the following is a specification.

This invention relates to a fastener for jewelry which may be readily opened and closed, and is not apt to become accidentally separated.

The invention may be applied to ear rings, studs, cuff and vest buttons, or similar articles.

In the accompanying drawing: Figure 1 is a side view of an ear ring provided with my improved fastener; Fig. 2 a side view of the male member of the fastener; Fig. 3 an inner view of the female member, and Fig. 4 a perspective view, partly in section, of said female member.

From an article of jewelry, such as an ear ring 10, extends a stem 11 provided with a laterally projecting bit 12 which is set back from the end of the stem, the whole constituting the male member of the fastening.

lhe female member is composed of a back plate 13 having a central aperture 14 into which opens a radial slot 15. A tubular sleeve 16, slitted longitudinally as at 17, is fitted into aperture 14, so as to project from front of plate 13. Within the back of plate 13 is formed a radial recess 18 which may pass entirely through the plate and communicates with aperture 14 through a notch in the edge of sleeve 16. A stop or abutment 19 rises from plate 13 sidewise of recess 18. On back of plate 13 there is mounted a housing 20 which incloses aperture 14, slot 15, recess 18 and abutment 19. Within this housing is permanently contained a spiral or other spring 21.

To close the fastening, stem 11 is thrust through sleeve 16 until bit 12 arrives back of plate 13. During this movement the bit is properly guided toward slot 15 by its e11- gagement with the walls of slit 17. After the bit has entered housing 20, a turn is given to stem 11, until bit 12 encounters abutment 19, which thus checks the rotation as soon as bit 12 has become alined with recess 18. Spring 21, in bearing upon the bit, will now push stem 11 slightly out and force the bit into recess 18, to securely lock the fastening in its closed position.

To open the fastening, its two members are pushed slightly toward each other to carry bit 12 out of recess 18, stem 11 is turned until bit 12 becomes alined with slot 15, and then the stem is withdrawn through sleeve 16.

It will be seen that my improved fastening is simple in construction, may be readily manipulated, and securely locks the parts against accidental or unauthorized opening.

I claim:

in a jewelry fastener, a female member comprising a plate having an aperture, a communicating radial slot, a slitted tubular sleeve fitted into the aperture and having a notched edge, a radial recess in the back of the plate that communicates with the aperture and with said notched edge, a stop on the back of the plate in proximity to the radial recess, a housing mounted on the plate, and a spring within the housing, combined with a male member comprising a stem and bit rotatable after entering said plate, said bit being adapted to be spring-pressed into the radial recess to thereby obstruct the withdrawal of the bit through the aperture of the plate.

Signed by me at New York city, (Manhattan,) N. Y., this 16th day of October, 1908.

NATHAN LIEBERFREUND.

lVitnesses:

W. R. SCHULZ, FRANK v. BRIESEN. 

